Mystery news on the origin of the universe. The Harvard-Smithsonian Center for Astrophysics will announce a major discovery at 11:55 ET. Some suspect that “primordial gravitational waves”—theoretical ripples in space-time created in the moments after the Big Bang—have finally been detected.

Crimea’s pro-Russia referendum passed in a landslide.Some 97% of Crimean voters opted to leave the Ukraine and join Russia. Ethnic Russians comprise 58.5% of Crimea’s population; the referendum offered no option for voters who wanted the constitution to remain unchanged.

Vodafone bought into Spain. The company agreed to buy cable firm Ono for $7.2 billion euros ($10 billion), as it invests the proceeds from its Verizon Wireless sale into its core European market.

…While Jimmy Choo opted for a London IPO. Labelux, the Swiss firm that bought Jimmy Choo for £525 million ($873 million) in 2011, is looking to float a small stake of the luxury shoe company on the London Stock Exchange. The deal could value Jimmy Choo at £1 billion (paywall); funds raised would fuel the firm’s expansion in Asia.

Christopher Mims on the first “app store” for hardware. “The most successful technologies are those aimed at what Steve Jobs called “things people want to do.” That is, they answer a human need that has remained constant throughout history, rather than cater a particular “market.” I’m convinced that Mighty Cast’s NEX band—or something like it—is one of these technologies, the sort that has the potential to grow well beyond its original purpose.” Read more here.